CN105157686A - Light splitting structure and laser demarcation device comprising same - Google Patents
Light splitting structure and laser demarcation device comprising same Download PDFInfo
- Publication number
- CN105157686A CN105157686A CN201510556694.1A CN201510556694A CN105157686A CN 105157686 A CN105157686 A CN 105157686A CN 201510556694 A CN201510556694 A CN 201510556694A CN 105157686 A CN105157686 A CN 105157686A
- Authority
- CN
- China
- Prior art keywords
- emergent ray
- horizontal
- light
- vertical
- ray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
Abstract
The invention provides a light splitting structure, which comprises a horizontal laser tube and a vertical laser tube which are fixedly arranged on a fixing device together; a first light source and a first light splitting module arranged at the first height in sequence are arranged in the horizontal laser tube; the first light source is arranged at the rear of the horizontal laser tube, and after passing the first light splitting module, a first ray emitted from the first light source is split into a left emergent ray and a right emergent ray respectively emitted to the left side and the right side of the horizontal laser tube, therefore two horizontal datum points and a horizontal datum line emitted forwards are formed; a second light source and a second light splitting module arranged at the second height in sequence are arranged in the vertical laser tube; the second light source is arranged at the rear of the vertical laser tube, and after passing the second light splitting module, a second ray emitted from the second light source is split into an upper emergent ray and a lower emergent ray respectively emitted to the upper side and the lower side of the vertical laser tube, therefore two vertical datum points and a vertical datum line emitted forwards are formed.
Description
Technical field
The present invention relates to optical device field, particularly relate to a kind of beam-splitting structure.
The invention still further relates to a kind of laser level with this beam-splitting structure.
Background technology
As everyone knows, laser level is a kind of novel optical, mechanical and electronic integration instrument, it adopts 635nm laser diode mostly, visible red horizontal straight line and vertical straight line can be projected on metope, utilize the automatic compensator of instrument internal or the manual horizontalization of plate level can keep level (or vertical) position of laser projection line.Be mainly used in interior decoration, erection of doors and windows, pipe installation, tunnel piercing, hang in vertical line and the building operation such as quality inspection and project supervision.New pattern laser level is different from conventional calibration instrument in principle, and its accuracy requirement is also higher than traditional level, so the design of movement causes the concern of more and more manufacturer in laser level.
Some laser levels used in prior art, in order to realize the function of various datum line or reference point, each datum line corresponding or reference point can arrange an independent LASER Light Source respectively, when instrument realizes slightly complicated throwing line requirement, a large amount of laser tubes will be needed, finally can bring the inconvenience mentioned with in weight to instrument, also can cause the problems such as energy dissipation in use.
Therefore, need one badly and can save space, reduce costs, simplify structure and assemble flow, be conducive to the laser level of product miniaturization.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the object of the present invention is to provide and a kind ofly can project the beam-splitting structure of the reference point of a horizontal datum, a vertical datum line and four direction and there is the laser level of this beam-splitting structure.
The invention discloses a kind of beam-splitting structure, comprise a horizontal laser light pipe, a vertical laser tube and a stationary installation, described horizontal laser light pipe and described vertical laser tube are fixed in described stationary installation jointly, be provided with in described horizontal laser light pipe and be sequentially arranged in the first light source on the first height and the first spectral module, described first light source arrangement is at the rear portion of described horizontal laser light pipe, first light of its outgoing is after described first spectral module, be divided into respectively left, deflect 90 ° to the right on the left of described horizontal laser light pipe, the left emergent ray of right side outgoing, right emergent ray, thus form two horizontal reference points, and through the horizontal datum of horizontal proliferation to described horizontal laser light pipe front outgoing, be provided with in described vertical laser tube and be sequentially arranged in secondary light source on the second height and the second spectral module, described secondary light source is arranged in the rear portion of described vertical laser tube, second light of its outgoing is after described second spectral module, be divided into respectively to upper, deflect down 90 ° on the upside of described vertical laser tube, the upper emergent ray of downside outgoing, lower emergent ray, thus form two vertical reference points, and through vertically spreading the vertical datum line to described vertical laser tube front outgoing.
Preferably, described first spectral module comprises and is sequentially arranged in the first reverberator on described first height and the first cylindrical prism, the central ray of described first light is transmitted to described first cylindrical prism by described first reverberator, the left side and the right side that other light of described first light are reflexed to respectively described horizontal laser light pipe form described left emergent ray and described right emergent ray simultaneously, described first cylindrical prism is vertically placed, and described central ray is diffused into described horizontal datum; Described second spectral module comprises and is sequentially arranged in the second reverberator on described second height and the second cylindrical prism, the central ray of described second light is transmitted to described second cylindrical prism by described second reverberator, the upper side and lower side simultaneously other light of described second light being reflexed to respectively described vertical laser tube forms described upper emergent ray and described lower emergent ray, described second cylindrical prism horizontal positioned, diffuses into described vertical datum line by described central ray.
Preferably, described first reverberator comprises two piece of first catoptron vertically placed, orthogonal and be 45 ° with described left emergent ray and described right emergent ray respectively, minimum spacing between described two piece of first catoptron equals the diameter of described first cylindrical prism, described second reverberator comprises two piece of second catoptron of horizontal positioned, orthogonal and be 45 ° with described upper emergent ray and described lower emergent ray respectively, the minimum spacing between described two piece of second catoptron equals the diameter of described second cylindrical prism.
Preferably, between described two the first catoptrons, can described upper emergent ray or described lower emergent ray be passed through, or can described left emergent ray or described right emergent ray be passed through between described two the second catoptrons.
Preferably, described horizontal laser light pipe and described vertical laser tube are arranged in juxtaposition.
Preferably, described horizontal laser light pipe is arranged in parallel at above or below described vertical laser tube, and the upper side and lower side of described horizontal laser light pipe arranges a pair the first coaxial light hole, and described upper emergent ray or described lower emergent ray are through described first light hole.
Preferably, described horizontal laser light pipe is arranged in parallel at left side or the right side of described vertical laser tube, and the left side of described horizontal laser light pipe and right side arrange a pair the second coaxial light hole, and described left emergent ray or described right emergent ray are through described second light hole.
The invention also discloses a kind of laser level, comprise housing and be located at the light emitting module in described housing, the beam-splitting structure as described above that described light emitting module comprises drive source and is electrically connected with described drive source.
Preferably, described drive source is arranged in described stationary installation or outside described stationary installation.
After have employed technique scheme, compared with prior art, there is following beneficial effect:
1. the emergent light of light source in two laser tubes can be divided into a left side, front, right three part of horizontal emergent raies in 90 ° mutually by beam-splitting structure of the present invention respectively, and upper, front, lower three straightened portion emergent raies in 90 ° mutually, thus only use two laser tubes just can project a horizontal datum, a vertical datum line and four reference points.
2., in laser level of the present invention, use two laser tubes just can meet the basic demand of engineering construction mapping, reduce cost, simplify the structure and assemble flow, save the spatial volume shared by pendulum mass, be conducive to the miniaturization of product.
Accompanying drawing explanation
Fig. 1 is the beam-splitting structure stereographic map meeting the preferred embodiment of the present invention;
Fig. 2 is the index path of the beam-splitting structure horizontal laser light source meeting preferred embodiment of the present invention when being positioned at above vertical lasing light emitter;
Fig. 3 is the left view sectional view of the beam-splitting structure meeting the preferred embodiment of the present invention.
Reference numeral:
1-horizontal laser light pipe, 11-first height, 12-first light source, the central ray of 121-first light, other light of 122-first light, 13-first spectral module, 131-first cylindrical prism, 132-first catoptron, the left emergent ray of 14-, the right emergent ray of 15-, 16-horizontal reference point, 17-horizontal datum, 18-first light hole;
The vertical laser tube of 2-, 21-second height, 22-secondary light source, the central ray of 221-second light, other light of 222-second light, 23-second spectral module, 231-second cylindrical prism, 232-second catoptron, the upper emergent ray of 24-, emergent ray under 25-, the vertical reference point of 26-, the vertical datum line of 27-, 28-second light hole;
3-stationary installation.
Embodiment
Advantage of the present invention is set forth further below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, in a preferred embodiment of a kind of beam-splitting structure disclosed by the invention, comprise the vertical laser tube 2 of a horizontal laser light pipe 1, and a stationary installation 3, horizontal laser light pipe 1 and vertical laser tube 2 are fixed in stationary installation 3 jointly, one facilitates the entirety assembling of two laser tubes and dismantles, and two can make the location of two laser tubes be more prone to.
The first light source 12 and the first spectral module 13 be sequentially arranged on the first height 11 is provided with in horizontal laser light pipe 1, wherein the first light source 12 is arranged in the rear portion of horizontal laser light pipe 1, make the first light of the first light source 12 outgoing can all receive by the first spectral module 13.Wherein, first light is after the first spectral module 13, be divided into three beams light, wherein two-beam line deflects, remaining Ray Of Light does not deflect along the direction of propagation of former first light and continues to propagate, particularly, two restraint the light that deflects for respectively left, deflect 90 ° to the right on the left of horizontal laser light pipe 1, the left emergent ray 14 of right side outgoing, right emergent ray 15, left emergent ray 14, right emergent ray 15 forms two horizontal reference points 16, a branch of light do not deflected is through the horizontal datum 17 of horizontal proliferation to horizontal laser light pipe 1 front outgoing.Similarly, be provided with in vertical laser tube 2 be sequentially arranged in second height 21 on secondary light source 22 and the second spectral module 23, wherein secondary light source 22 is arranged in the rear portion of horizontal laser light pipe 2, make the second light of secondary light source 22 outgoing can all receive by the second spectral module 23.Wherein, second light of secondary light source 22 outgoing is after the second spectral module 23, be divided into three beams light, wherein two-beam line deflects, remaining Ray Of Light does not deflect along the direction of propagation of former first light and continues to propagate, particularly, two restraint the light that deflects for respectively to upper, deflect down 90 ° on the upside of vertical laser tube 2, the upper emergent ray 24 of downside outgoing, lower emergent ray 25, upper emergent ray 24, lower emergent ray 25 forms two vertical reference points 26, a branch of light do not deflected is the vertical datum line 27 through vertically spreading to vertical laser tube 2 front outgoing.The present invention is by arranging a horizontal laser light pipe 1 for outgoing horizontal reference point 16 and horizontal datum 17 and one the vertical laser tube 2 for the vertical reference point of outgoing 26 and vertical datum line 27, just can realize the emergent light of two lines (horizontal datum 17, vertically datum line 27) 5 points (intersection points of upper and lower, left and right reference point and two datum lines), reduce the quantity of laser tube substantially, reduce cost, simplify the structure and assemble flow, save space, be conducive to the miniaturization of product.
As shown in Figure 2 and Figure 3, meet in the beam-splitting structure of the preferred embodiment of the present invention, first spectral module 13 comprise be sequentially arranged in first height 11 on the first reverberator and the first cylindrical prism 131, the central ray 121 of the first light is transmitted to the first cylindrical prism 131 by the first reverberator, other light 122 of first light are reflexed to respectively left side and the right side of horizontal laser light pipe 1 simultaneously, first cylindrical prism 131 is vertically placed, and central ray is diffused into horizontal datum 17; Second spectral module 23 comprise be sequentially arranged in second height 21 on the second reverberator and the second cylindrical prism 231, the central ray 221 of the second light is transmitted to the second cylindrical prism 231 by the second reverberator, other light 222 of second light are reflexed to respectively the upper side and lower side of vertical laser tube 2 simultaneously, second cylindrical prism 231 horizontal positioned, diffuses into vertical datum line 27 by central ray.First reverberator, the second reverberator can have multiple choices, such as arrange two pieces of catoptrons, arrange Dove prism etc., and the present invention preferably arranges two pieces of plane mirrors.
Preferably, first reverberator comprises two piece of first catoptron 132 vertically placed, orthogonal and respectively with left emergent ray 14 and right emergent ray 15 in 45 °, minimum spacing between two piece of first catoptron 132 equals the diameter of the first cylindrical prism 131, second reverberator comprises two piece of second catoptron 232 of horizontal positioned, orthogonal and respectively with upper emergent ray 24 and lower emergent ray 25 in 45 °, the minimum spacing between two piece of second catoptron 232 equals the diameter of the second cylindrical prism 231.In first, second spectral module 23, two pieces of catoptrons and one piece of cylindrical prism are set simply, utilize the simplest optical reflection principle, just can realize object of the present invention.
Preferably, between two the first catoptrons 132, can upper emergent ray 24 or lower emergent ray 25 be passed through, or can left emergent ray 14 or right emergent ray 15 be passed through between two the second catoptrons 232.When two laser instruments are closely arranged in juxtaposition, propagation that is upper and lower, left or right emergent ray 15 can not be hindered.
As shown in Figure 2, horizontal laser light pipe 1 and vertical laser tube 2 are arranged in juxtaposition.Preferably, horizontal laser light pipe 1 is arranged in parallel at above or below vertical laser tube 2, and the upper side and lower side of horizontal laser light pipe 1 arranges a pair the first coaxial light hole 18, and upper emergent ray 24 or lower emergent ray 25 are through the first light hole 18.Preferably, horizontal laser light pipe 1 is arranged in parallel at left side or the right side of vertical laser tube 2, the left side of horizontal laser light pipe 1 and right side arrange a pair the second coaxial light hole 28, left emergent ray 14 or right emergent ray 15 are through the second light hole 28, situation when Fig. 2 only illustrates that horizontal laser light pipe 1 is placed on the top of vertical laser tube 2, horizontal laser light pipe 1 be placed on the below of vertical laser tube 2, left side and right side time situation only need to be moved to by horizontal laser light pipe 1 below vertical laser tube 2, left side and right side, principle is identical with Fig. 2.
The invention also discloses a kind of laser level, comprise housing and be located at the light emitting module in housing, the beam-splitting structure as described above that light emitting module comprises drive source and is electrically connected with drive source.Preferably, drive source is arranged in stationary installation 3 or outside stationary installation 3.The laser level of the beam-splitting structure using the present invention mentioned above, can be good at conserve space, reduces costs, be beneficial to the miniaturization of product.
The emergent light of light source in two laser tubes can be divided into a left side, front, right three part of horizontal emergent raies in 90 ° mutually by beam-splitting structure of the present invention respectively, and upper, front, lower three straightened portion emergent raies in 90 ° mutually, thus only use two laser tubes just can project the vertical datum line 27 of a horizontal datum 17, and four reference points.In laser level of the present invention, use two laser tubes just can meet the basic demand of engineering construction mapping, reduce cost, simplify the structure and assemble flow, save the spatial volume shared by pendulum mass, be conducive to the miniaturization of product.
Should be noted that, embodiments of the invention have preferably implementation, and not any type of restriction is done to the present invention, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solution of the present invention is not departed from, the any amendment done above embodiment according to technical spirit of the present invention or equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a beam-splitting structure, comprises a horizontal laser light pipe, a vertical laser tube and a stationary installation, and described horizontal laser light pipe and described vertical laser tube are fixed in described stationary installation jointly,
It is characterized in that,
Be provided with in described horizontal laser light pipe and be sequentially arranged in the first light source on the first height and the first spectral module, described first light source arrangement is at the rear portion of described horizontal laser light pipe, first light of its outgoing is after described first spectral module, be divided into deflect respectively left, to the right 90 ° on the left of described horizontal laser light pipe, the left emergent ray of right side outgoing, right emergent ray, thus form two horizontal reference points, and through the horizontal datum of horizontal proliferation to described horizontal laser light pipe front outgoing
Be provided with in described vertical laser tube and be sequentially arranged in secondary light source on the second height and the second spectral module, described secondary light source is arranged in the rear portion of described vertical laser tube, second light of its outgoing is after described second spectral module, be divided into respectively to upper, deflect down 90 ° on the upside of described vertical laser tube, the upper emergent ray of downside outgoing, lower emergent ray, thus form two vertical reference points, and through vertically spreading the vertical datum line to described vertical laser tube front outgoing.
2. beam-splitting structure as claimed in claim 1, it is characterized in that, described first spectral module comprises and is sequentially arranged in the first reverberator on described first height and the first cylindrical prism, the central ray of described first light is transmitted to described first cylindrical prism by described first reverberator, the left side and the right side that other light of described first light are reflexed to respectively described horizontal laser light pipe form described left emergent ray and described right emergent ray simultaneously, described first cylindrical prism is vertically placed, and described central ray is diffused into described horizontal datum;
Described second spectral module comprises and is sequentially arranged in the second reverberator on described second height and the second cylindrical prism, the central ray of described second light is transmitted to described second cylindrical prism by described second reverberator, the upper side and lower side simultaneously other light of described second light being reflexed to respectively described vertical laser tube forms described upper emergent ray and described lower emergent ray, described second cylindrical prism horizontal positioned, diffuses into described vertical datum line by described central ray.
3. beam-splitting structure as claimed in claim 2, it is characterized in that, described first reverberator comprises two piece of first catoptron vertically placed, orthogonal and be 45 ° with described left emergent ray and described right emergent ray respectively, the minimum spacing between described two piece of first catoptron equals the diameter of described first cylindrical prism;
Described second reverberator comprises two piece of second catoptron of horizontal positioned, orthogonal and be 45 ° with described upper emergent ray and described lower emergent ray respectively, and the minimum spacing between described two piece of second catoptron equals the diameter of described second cylindrical prism.
4. beam-splitting structure as claimed in claim 3, it is characterized in that, can described upper emergent ray or described lower emergent ray be passed through between described two the first catoptrons, or can described left emergent ray or described right emergent ray be passed through between described two the second catoptrons.
5. the beam-splitting structure as described in claim 1 or 4, is characterized in that, described horizontal laser light pipe and described vertical laser tube are arranged in juxtaposition.
6. beam-splitting structure as claimed in claim 5, it is characterized in that, described horizontal laser light pipe is arranged in parallel at above or below described vertical laser tube, the upper side and lower side of described horizontal laser light pipe arranges a pair the first coaxial light hole, and described upper emergent ray or described lower emergent ray are through described first light hole.
7. beam-splitting structure as claimed in claim 5, it is characterized in that, described horizontal laser light pipe is arranged in parallel at left side or the right side of described vertical laser tube, the left side of described horizontal laser light pipe and right side arrange a pair the second coaxial light hole, and described left emergent ray or described right emergent ray are through described second light hole.
8. a laser level, comprises housing and is located at the light emitting module in described housing, it is characterized in that, the beam-splitting structure as described in any one of claim 1 to 7 that described light emitting module comprises drive source and is electrically connected with described drive source.
9. laser level as claimed in claim 8, it is characterized in that, described drive source is arranged in described stationary installation or outside described stationary installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556694.1A CN105157686B (en) | 2015-09-02 | 2015-09-02 | A kind of beam-splitting structure and the laser level with the beam-splitting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556694.1A CN105157686B (en) | 2015-09-02 | 2015-09-02 | A kind of beam-splitting structure and the laser level with the beam-splitting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105157686A true CN105157686A (en) | 2015-12-16 |
| CN105157686B CN105157686B (en) | 2018-01-12 |
Family
ID=54798627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510556694.1A Active CN105157686B (en) | 2015-09-02 | 2015-09-02 | A kind of beam-splitting structure and the laser level with the beam-splitting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105157686B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918332A (en) * | 2017-03-27 | 2017-07-04 | 南京德朔实业有限公司 | level |
| CN107588719A (en) * | 2017-08-09 | 2018-01-16 | 宝沃汽车（中国）有限公司 | Measurement of coordinates servicing unit |
| CN109211188A (en) * | 2017-07-07 | 2019-01-15 | 莱卡地球系统公开股份有限公司 | Laser level |
| CN109974677A (en) * | 2019-04-19 | 2019-07-05 | 常州华达科捷光电仪器有限公司 | A kind of light channel structure and the laser level using the light channel structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003612A (en) * | 2003-06-13 | 2005-01-06 | Topcon Corp | Laser beam sighting device and optical axis compensation method |
| JP2009204413A (en) * | 2008-02-27 | 2009-09-10 | Toshiba Plant Systems & Services Corp | Laser device for marking |
| CN201383040Y (en) * | 2009-04-14 | 2010-01-13 | 西安华科光电有限公司 | Beam-splitting laser module |
| CN201518075U (en) * | 2009-09-17 | 2010-06-30 | 广州市致奥光电技术有限公司 | Laser instrument with beam splitting system |
| CN202630956U (en) * | 2012-09-28 | 2012-12-26 | 西安华科光电有限公司 | Multi-point laser ray projection device |
| CN203798355U (en) * | 2014-03-21 | 2014-08-27 | 东台市大诚光电科技有限公司 | Laser demarcation device |
| CN204963863U (en) * | 2015-09-02 | 2016-01-13 | 常州华达科捷光电仪器有限公司 | Divide photo structure and have laser demarcation device of this minute photo structure |
-
2015
- 2015-09-02 CN CN201510556694.1A patent/CN105157686B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003612A (en) * | 2003-06-13 | 2005-01-06 | Topcon Corp | Laser beam sighting device and optical axis compensation method |
| JP2009204413A (en) * | 2008-02-27 | 2009-09-10 | Toshiba Plant Systems & Services Corp | Laser device for marking |
| CN201383040Y (en) * | 2009-04-14 | 2010-01-13 | 西安华科光电有限公司 | Beam-splitting laser module |
| CN201518075U (en) * | 2009-09-17 | 2010-06-30 | 广州市致奥光电技术有限公司 | Laser instrument with beam splitting system |
| CN202630956U (en) * | 2012-09-28 | 2012-12-26 | 西安华科光电有限公司 | Multi-point laser ray projection device |
| CN203798355U (en) * | 2014-03-21 | 2014-08-27 | 东台市大诚光电科技有限公司 | Laser demarcation device |
| CN204963863U (en) * | 2015-09-02 | 2016-01-13 | 常州华达科捷光电仪器有限公司 | Divide photo structure and have laser demarcation device of this minute photo structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918332A (en) * | 2017-03-27 | 2017-07-04 | 南京德朔实业有限公司 | level |
| CN109211188A (en) * | 2017-07-07 | 2019-01-15 | 莱卡地球系统公开股份有限公司 | Laser level |
| EP3425334B1 (en) * | 2017-07-07 | 2022-09-07 | Leica Geosystems AG | Laser level |
| CN107588719A (en) * | 2017-08-09 | 2018-01-16 | 宝沃汽车（中国）有限公司 | Measurement of coordinates servicing unit |
| CN107588719B (en) * | 2017-08-09 | 2019-09-20 | 宝沃汽车（中国）有限公司 | Measurement of coordinates auxiliary device |
| CN109974677A (en) * | 2019-04-19 | 2019-07-05 | 常州华达科捷光电仪器有限公司 | A kind of light channel structure and the laser level using the light channel structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105157686B (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105157686A (en) | Light splitting structure and laser demarcation device comprising same | |
| CN100468161C (en) | Backlight module | |
| WO2023011037A1 (en) | Light source system | |
| US20150138833A1 (en) | Backlight module and liquid cyrstal display device including the same | |
| CN204963863U (en) | Divide photo structure and have laser demarcation device of this minute photo structure | |
| WO2018058741A1 (en) | Multipath light beam processing optical system and processing method therefor, and multipath laser detector | |
| US20210199877A1 (en) | Light guide plate, optical structure and associated electronic device | |
| CN103543502A (en) | Optical waveguide connector | |
| CN100437281C (en) | Back light module | |
| JP2001155510A (en) | Linear light source apparatus | |
| US3040698A (en) | Instrument construction | |
| CN105242344A (en) | Display device | |
| US11486790B2 (en) | Laser measuring system | |
| CN103293694A (en) | Multiple semiconductor laser beam combining system | |
| CN102620211B (en) | Backlight module and liquid crystal display | |
| CN103458150A (en) | Light guide and image reading apparatus | |
| ES2168935B1 (en) | PRESENTATION DEVICE BY PROJECTION | |
| CN103388784B (en) | A kind of idle call thermometer showing device | |
| CN205245081U (en) | Display device | |
| CN203323777U (en) | Photoelectric sensor | |
| CN112098975A (en) | Line scanning light source generating device for SPAD scheme | |
| CN203930052U (en) | Laser ranging beam splitter | |
| CN210534453U (en) | Optical system and demarcation device | |
| CN112448265A (en) | Dual-wavelength laser | |
| EP2930464B1 (en) | Window module, window and laser line projector having the window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |